Can silver metal be used to electrochemically reduce copper? I have a solution of copper(II) ions and several cations.  I am trying to reduce the copper ions to copper metal with electricity.  My Ideas was to use silver as the anode and a copper wire as the cathode.  I have seen people say to do this using platinum as the anode, however this is expensive.  I was wondering if silver could be used as an alternative anode because it has a higher reduction potential than copper.  If not, could any metals besides gold and platinum work.  I have attached a picture of my proposed cell.  I have tried the cell, but the silver began to corrode and form a silvery deposit, probably a silver salt.
In principle, electrically depositing copper(II) ions onto a silver electrode should be possible. As it should also be possible to deposit those ions on just about every other cathode in existence as long as there are no more noble cations in solution.

However, depending on what you want to do with the copper, you may run into problems. Do you want copper-plated silver? That should be fine. Do you want to redissolve the copper to get a pure solution by acidifying? In that case, you cannot use the typical $\ce{HNO3}$ method because that would oxidise the silver, too, and you would end up with a mixture of copper(II) and silver(I) nitrates in solution.