How can you electroplate an iron nail with copper? Explain with the help of a diagram.

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Solution

To electroplate copper on an iron nail, copper sulphate solution is taken in a beaker. A wide copper strip and the iron nail are connected with a battery and dipped into the beaker.
Copper sulphate when dissolved into water forms positively charged copper ions and negatively charged sulphate ions.
When an electric current is passed through the solution, the copper ions (cations) move towards the cathode (iron nail) and get deposited over it. At the anode, the copper strip loses electrons to form copper ions in the solution.

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