How much current can a tin solder track handle?

I’m working on a DIY project where I need to control some 9V solenoid valves with an Arduino.
I don’t have the tools to make a PCB myself, so I chose to work on perfboards.

Now, I have to connect power supply (MeanWell ) to the step down regulator (Polou D36V50F9) that powers the solenoid valves, and I’m doing it with a solder track.

With a solder track I mean a connection between perfboard pads made with standard solder tin.

My power supply is capable of sourcing 4.5 amperes at 12, with a total power of 54W.

• Can a solder track hadle all that power?
• How wide should it be?
• How thick?

Note:

My solenoid valves are latching, and this means that they need only a short pulse to open and close (opposite polarity), and I can control them one at a time to minimize the current. But I want to be sure that my circuit won’t burn in case the program does not work properly.