Answer:
[tex]2.1276595745\times 10^{-7}\ cm[/tex]
Explanation:
Volume of oil = 0.1 mL = 0.1 cm³
Area of oil = [tex]47\ m^2[/tex]
Converting to [tex]cm^2[/tex]
[tex]1\ m=10^2\ cm[/tex]
[tex]1\ m^2=10^4\ cm^2[/tex]
[tex]47\ m^2=47\times 10^4\ cm^2[/tex]
Volume is given by
[tex]V=At\\\Rightarrow t=\dfrac{V}{A}\\\Rightarrow t=\dfrac{0.1}{47\times 10^4}\\\Rightarrow t=2.1276595745\times 10^{-7}\ cm[/tex]
The thickness of the layer is [tex]2.1276595745\times 10^{-7}\ cm[/tex]