2. Write the equations for the reactions that take place on the electrodes during the electrolysis of an aqueous solution of tin sulfate: a) with a graphite anode, b) with a tin anode. If a current of 10 A is passed through the solution for 3 hours, how will the amount of tin change in both cases, if the current efficiency of tin at the cathode is 70%, and at the anode 100%.

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