A packaging polymer film of thickness $L = 40.0\,\mu\text{m}$ ($4.0 \times 10^{-5}\text{ m}$) separates a food headspace from ambient air. An aroma compound has a binary molecular diffusion coefficient of $D_{AB} = 3.20 \times 10^{-11}\text{ m}^2\text{/s}$ through the film. The concentration gradient maintained across the film faces is $\Delta C = 0.080\text{ kg/m}^3$. Under steady-state Fickian diffusion ($J = D_{AB} \frac{\Delta C}{L}$), the mass flux of the aroma compound in $\text{mg/(m}^2\cdot\text{h})$ is ________ (round off to one decimal place).