A conveyor belt system in a packaging plant feeds grain at a constant rate of $150.0 \text{ metric tons per day}$. Express this flow rate in ounces per second ($\text{oz/s}$). (Take $1 \text{ metric ton} = 1000 \text{ kg}$, $1 \text{ kg} \approx 35.274 \text{ oz}$, and $1 \text{ day} = 86,400 \text{ seconds}$)