Dissolving \( 1.24 \ \mathrm{g} \) of white phosphorous in boiling \( \mathrm{NaOH} \) solution in an inert atmosphere gives a gas \( Q \). The amount of \( \mathrm{CuSO_4} \) (in \( \mathrm{g} \)) required to completely consume the gas \( Q \) is _______. \([ \text{Given: Atomic mass of } \mathrm{H} = 1, \ \mathrm{O} = 16, \ \mathrm{Na} = 23, \ \mathrm{P} = 31, \ \mathrm{S} = 32, \ \mathrm{Cu} = 63 ]\)
