lm324 current can draw safely
With some guessing, I conclude that you are looking at the Short-circuit output current. That is per output, but it is not the right figure to look at.

You want to look at IO, Output current, specified at typical -30/+20 mA at 25 °C, but only guaranteed -10/+5 mA at full temperature range. This is per output.

The total output current is limited by the total heat, and has to be calculated from the dissipated power, the thermal resistance, and the maximum allowed junction temperature.



I see that you want to drive a relay. This is normally done with a transistor, something like this:







simulate this circuit &ndash; Schematic created using CircuitLab