Why do we use electrolysis when separating copper sulphate?
In electrolysis of aqueous copper sulfate, copper ions are less reactive than hydrogen ions. Therefore, copper ions are discharged and become copper metal. Meanwhile, hydroxide ions will be discharged as sulfate ions usually don’t discharge via electrolysis. In the end, electrolysis allows us to get pure copper. And electrolysis of copper compounds are also used for electroplating.
