Question

I need help calculating some problems dealing with Avogadro'sNumber and Faraday's Constant. Here is what I have so far:
Initial mass of copper anode: 35.00 g
Initial mass of copper cathode: 34.85 g
Time of electrolysis: 15 Min.
Current: 12V
Final mass of copper anode: 34.95g
Final mass of copper cathode: 34.79g

What I need:
Mass of copper oxidized at anode (g):
Moles of copper oxidized (mol):
Moles of electrons transferred (mol e-):
Coulombs passed through cell (C):
Electrons passed through cell (e-):
Avogadro's number (e-/mol e-):
Average value of Avogodro's number:
Percent Error:
Faraday constant (C/mol e-):
Average Faraday constant (C/mol e-):
Literature value of Faraday constant:
Percent error:

I have about 20 of these to do but I'll be ok if I can see howthey're calculated. Thanks for your help.