When copper utensils iron nails or silver ornaments are kept in open what happens find out the reason for them and note down your observation?

When copper utensils, iron nails, or silver ornaments are kept in the open, they tend to undergo a process called oxidation. This causes the metals to react with oxygen in the air, leading to the formation of a layer of corrosion or tarnish on their surfaces. The observation would be a change in color or appearance of the objects over time, as they develop a patina or rust.