Given,\\\\(q=3\ imes 10^{-7}C\\\\)\\\\(e=1.6\ imes 10^{-19}C\\\\)(a) The number of the electron,The charge is quantized, \\\\(q=ne\\\\)\\\\(n=\\dfrac{q}{e}=\\dfrac{3\ imes 10^{-7}}{1.6\ imes 10^{-19}}\\\\)\\\\(n=1.875\ imes 10^{12}\\\\) electrons(b) Yes, mass of electron is transferred.We know that, \\\\(m=9.1\ imes 10^{-31}kg\\\\)The transfer of mass, \\\\(M=nm\\\\)\\\\(M=1.875\ imes 10^{12}\ imes 9.1\ imes 10^{-31}\\\\)\\\\(M=17.0\ imes 10^{-19}kg\\\\)