(d) In the Daniell cell, copper and zinc electrodes are immersed in a solution of copper(II) sulphate and zinc sulphate, respectively. At the anode (negative electrode), zinc is oxidised per the following half reaction. Zn(s)⟶Zn2+(aq)+2e− At the cathode (positive electrode), copper is reduced per the following reaction. Cu2+(aq)+2e−⟶Cu(s) Overall cell reaction is Zn(s)+Cu2+(aq)⟶Zn2+(aq)+Cu(s) These processes result in the accumulation of solid copper at the cathode and the corrosion of the zinc electrode into the solution as zinc cations.