104. Solving a chemistry problem

For an aqueous solution of a given electrolyte:
Cu(NO3)2, copper electrodes, W=0.85, I=25A, t=0.5h, graphite anode replacement, pH=4.
-write the equation of the processes that take place on the electrodes during electrolysis;
-calculate how much and what substances will be released on the cathode and anode if the electrolysis is carried out at a current strength equal to I ... A, for a time t, current output W;
-determine how the anode process will change if the anode is replaced with another one indicated in the table.