Hello I need help with this problem please?A $50mm45mm20mm$ cell phone charger has a surface temperature of $T_s=34C$ when plugged into an electrical wall outlet but not in use. The surface of the charger is of emissivity $=0\mathrm{.}92$ and is subject to a free convection heat transfer coefficient of $h=4\mathrm{.}5\frac{W}{m^2}*K.$ The room air and wall temperatures are $T_{}=22C$ and $T_{\text{s}\text{u}\text{r}}=20C,$ respectively.

If electricity costs $C=$$$\frac{0\mathrm{.}18}{k}W*h,$ determine the daily cost of leaving the charger plugged in when not in use.

Daily cost $=$

dollar$/$day