Can Empty Metal Olive Oil Can float on the water?

Whether Empty Metal Olive Oil Can can float on the water depends on many factors, mainly analyzed as follows:
Material and density of the can
Common olive oil metal cans are made of tinplate, aluminum alloy, etc. If it is tinplate, the density of its main component iron is about 7.86g/cm³, which is much greater than the density of water 1g/cm³; and the density of aluminum is about 2.7g/cm³, which is also greater than the density of water. From the perspective of pure material density, these metals themselves cannot float on the water.

Shape and structure of the can
Metal cans are generally hollow structures. According to Archimedes' principle, the buoyancy of an object is equal to the weight of the liquid it displaces. The hollow structure of the empty metal olive oil can enables it to displace a certain volume of water. When the weight of the displaced water is greater than or equal to the weight of the can itself, it may float on the water. For example, common cans can float on the water when empty. Similarly, Empty Metal Olive Oil Can is also very likely to float on the water.
Air condition in the can
If the can is well sealed and has a certain amount of air, the average buoyancy of the can will increase. Because the density of air is much smaller than that of water, the average density of the entire can and the air inside may be smaller than the density of water, making the can float. But if more water enters the can, or the can is damaged and the air escapes, causing the overall average density to be greater than the density of water, the can will sink.
Water surface conditions
If there are unstable factors such as wind, waves, and currents on the water surface, or if the surface tension of the water is affected by impurities and other factors, it will also interfere with the floating of the Empty Metal Olive Oil Can, which may cause the can that originally floated to sink or be difficult to maintain a stable floating state.
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