m(C2H5OH)=(200*0,8)*0,96=153,6;  n(C2H5OH)=153,6/46=3,34;

            3,34                             3,34

         C2H5OH(t,k)=C2H4+H2O

               1                                  1

m(H2O)=3,34*18=60;

CuSO4*5H2O

  160(CuSO4)........ 5*18(H2O)

                     x............60

x=106,7.

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