No, the Metal Coat is an evolution item that you give to Onix or Scyther before you trade one of them if you want a Steelix or Scizor. Once you traded an Onix or Scyther holding a Metal Coat, your Pokemon will evolve, but they won't be holding a Metal Coat afterwards for you to take back.
Chat with our AI personalities
You cant. The item is a key item and you cant use it more than once
if you are talking about Pokemon you simply trade it to another persons game and it will evolve once its traded you can trade back after and you will have a gengar same applies for alakazam and various other Pokemon too.(some Pokemon are required to be traded while holding a specific item before they will evolve like onix to steelix where onix need to be holding a metal coat)
You can not, Once it is bought It's bought. It is impossible to get rid of an item, Who knows you may want that item in the future!
you get it once and it will be a key item. You cannot be lost.
once you have entered it, use the action replay code and replace xxxx with the item number.