Final answer:
Electroplating is used to enhance appearance and protect metal from corrosion.
Step-by-step explanation:
In electroplating, multiple coats or layers are put on the carbide base for different purposes such as enhancing appearance and protecting from corrosion.
The first purpose of electroplating is to enhance the appearance of metal objects. For example, a thin layer of chromium is electroplated onto bathroom fixtures or car parts like bumpers and hubcaps to give them a shiny, decorative finish.
The second purpose is to protect the metal from corrosion. Electroplating with a second metal forms a barrier that prevents the underlying metal from coming into contact with corrosive agents.