Copper containers are actually great at killing bacteria.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3312355/
But high levels can cause health problems, including kidney damage and possibly cancer.
https://www.canada.ca/en/health-canada/programs/consultation...
Between dying of dysentery and risking long term health issues it's a simple choice.
But unless your doctor specifically tells you to add more copper, you shouldn't be going out of your way to get it.