252 micro coulombs of charge is transferred between two points having a potential difference of 109 volt during an electric discharge. What mass of ice $\left( {at\,{\rm{ }}{0^0}C} \right)$ would it melt if all the energy released could be used for the above purpose? (take mechanical equivalent of heat as 4.2 joule/calorie and latent heat of fusion of ice is 80 cal/gm)