Consider a one-dimensional steady heat conduction process through a solid slab of thickness $0.1\: m$. The higher temperature side $A$ has a surface temperature of $80^{\circ}C$, and the heat transfer rate per unit area to low temperature side $B$ is $4.5$ $\text{kW}$/$m^{2}$. The thermal conductivity of the slab is $15$ $\text{W/m.K}$. The rate of entropy generation per unit area during the heat transfer process is _______________ $W/m^{2}.K$ (round off to $2$ decimal places)