charge = current x time
           Â
= 3.60 x 6 x 60 x 60 sec
          =
77760 C
moles of electrons utlised = charge / faraday
                                       Â
= 77760 / 96485
                                       Â
= 0.806
moles of H2SO4 = moles of electrons = 0.806
initial moles = 1.5 x 5 = 7.5
moles remains = 7.5 - 0.806 = 6.694
concentration of H2SO4 = moles / volume
                                   Â
= 6.694 / 1.50
                                  Â
= 4.46 M
concentration of H2SO4 = 4.46 M