I want to copy the text content displayed in Formula. Is there a way to do it? Thank you for your reply.

Create a formula field and place this in the OnClick.  Replace SERIAL with your fieldname and COPY SERIAL is the name of the button.

html("<button onclick='copyToClipboard(""" + concat(SERIAL) +
""")'>COPY SERIAL</button>
<script>
function copyToClipboard(str) {
var el = document.createElement('textarea');
el.value = str;
el.setAttribute('readonly', '');
el.style.position = 'absolute';
el.style.left = '-9999px';
document.body.appendChild(el);
el.select();
document.execCommand('copy');
document.body.removeChild(el);
}
</script>")