69. Electrolysis of a CuSO4 solution was carried out with a copper anode for 4 hours at a current strength of 50A. In this case, 224 g of copper was released. Calculate the current output (the ratio of the mass of the released substance to the theoretically possible). Make up the electronic equations of the processes occurring on the electrodes in the case of a copper and carbon anode.
Answer: 94.48%

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